Story

Trying to remember Author and Title

Not in order just how they are remembered

Alien artefact mistaken for Egyptian Sarcophagus and is displayed in a museum.

Artefact is either a stasis pod, or a regeneration pod, and also has powerful computer.

Protagonists gender is changed, and becomes host to the mind of the Alien.

Chase across the world to find another artefact.

Protagonist and Federal Agent fall for each other.